Colour Changing Dye From Roccella That Turns Red Under Acid Conditions And Blue Under Alkaline Conditions Crossword Clue

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We've checked our database and believe the answer is LITMUS which was last seen in the Telegraph Giant General Knowledge crossword.
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We think the answer to this crossword clue is: LITMUS

Updated: October 12, 2023

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Expand?		Letters	Answer	Clue
	99%	6		Exact Match!
	noun • a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator
	39%	6		Color obtained from Roccella tinctoria lichen
	noun • a purplish dye obtained from orchil lichens • any of various lecanoras that yield the dye archil
	39%	6		Can be extracted from Roccella species
	No meanings yet for this word...

We think you're currently doing a Telegraph Giant General Knowledge crossword, and other users also searched for these clues:

From the Anglo-Norman for “sleepy one”, a somnolent squirrel-like rodent nesting in woven bark and honeysuckle and feeding on berries, nuts and the blossoms of hawthorn, oak, sycamore and willow
Leaders of the dawn chorus that sing as they soar and gather in flocks known as exaltations

Source	#Number	Answer
Telegraph Giant General Knowledge27 May 2023	Down 6
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	Clue	Source
1	Color obtained from Roccella tinctoria lichen
2	It turns red in acid New York Times - 08 May 2012	New York Times / 08 May 2012
3	It turns red litmus paper blue New York Times - 25 Jan 2022	New York Times / 25 Jan 2022
4	Makers of Deep Blue, the first computer to beat a world chess champion under tournament conditions New York Times - 05 Nov 2022	New York Times / 05 Nov 2022
5	Meets, as changing conditions New York Times - 03 Dec 2004	New York Times / 03 Dec 2004
6	Name, from the Greek for “dawn” in reference to a rose colour it imparts to silk, of a red fluorescent dye Telegraph Giant General Knowledge - 01 Apr 2023	Telegraph Giant General Knowledge / 01 Apr 2023
7	The blue dye obtained from this tree turns red when treated with acid

Colour Changing Dye From Roccella That Turns Red Under Acid Conditions And Blue Under Alkaline Conditions Crossword Clue

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